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Article Number: 000207367

Troubleshooting Ethernet Problems using the Dell DA305 and DA310 Multiport Adapters

Summary: The following article provides information about troubleshooting and identifying Ethernet issues on the Dell DA4305 and DA310 adapters.

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Article Content

Symptoms

Identify Ethernet issues with the DA305 or DA310 adapters

 

Are you experiencing an issue using a wired network connection through the Ethernet port on your Dell DA305 or DA310 USB Type-C adapter? The following guide takes you through troubleshooting and identifying your issue, so that it can be resolved as quickly as possible.

Wired network issues fall into one of the following three types:

  • There is no network connection detected.
  • The network connection is detected, but it intermittently drops.
  • The network connection is detected, but it is running at slower speeds.


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Cause

The following troubleshooting steps take you through identifying the root cause of your wired network issue.


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Resolution

These troubleshooting steps take you step-by-step through identifying your problem:

  1. Unplug the network cable at either end of the cable. Is there any visible damage? (To the cable, the RJ45 connectors on either end of the cable, or to either of the Ethernet ports that the cable connects to.)

    • Yes, I can see visible damage. Replace the damaged part.

    • No, I cannot see any visible damage. Reconnect the network cable and proceed with the troubleshooting.

  2. With the network cable plugged at both ends, can you confirm that the link status LEDs are on? (The LEDs are on the Ethernet ports that either end of the network cable connects to.)

    • Yes, I can see the LEDs are on. There is a connection detected, proceed with the next troubleshooting step.

    • No, the LEDs are off. There is no connection detected, proceed with the next troubleshooting step.

  3. With the network cable plugged at both ends, check if moving the cable at either network port affects the issue? Does the issue change, does the connection drop, or are the network link LEDs on the Ethernet ports affected?

    • Yes, I can see changes when I move the cable. Replace the network cable for a working (known good) cable and confirm if the issue is still seen with either of the Ethernet ports. Replace the affected part.

    • No, I cannot see any changes when I move the cable. Proceed with the next troubleshooting step.

  4. Ensure that your computer has the latest BIOS and drivers for your computer and the DA305/DA310 adapter installed and that they show correctly in Device Manager. (This includes the Realtek Gigabit Ethernet Controller driver.) Does this change the issue that you see on your computer?

    • Yes, the issue changes or goes away. There is a software issue, or the issue is resolved.

    • No, the issue does not change. Proceed with the next troubleshooting step.

  5. There are some BIOS versions that include a LAN/GBE-Enabled/Disabled option. If your BIOS has this option, ensure that it is set to Enabled. Does this change the problem you see?

    • Yes, the issue goes away. The issue is resolved.

    • No, the issue does not change. Proceed with the next troubleshooting step.

  6. You have ruled out damage, loose connections, and software issues. The quickest way to identify a hardware issue is by taking parts out of the equation:

    1. Is there another network device (computer/tablet/game console) you can plug the network cable to? This quickly identifies or rules out an issue with both the cable and the network source.

    2. Is there another DA305/DA310 or USB Type-C network adapter that you can test with? This identifies or rules out your DA305/DA310 adapter as being the problem.

  7. Where the problem remains, the troubleshooting leaves you with four resolutions:

    • You have identified a problem with your network source or network cable. Contact your Internet Service Provider (ISP) or IT department to resolve this.

    • You identified a software issue in the BIOS or with one of the drivers required for the DA305/DA310 adapter. Contact Dell Support if you see problems after updating to the latest software available.

    • You have identified an issue with the DA305/DA310 adapter. If the adapter is in warranty and is not damaged, contact Dell Support with your troubleshooting information to take this further. (Out of Warranty calls are chargeable.)

    • You have identified an issue with the USB Type-C port on the computer that the adapter connects to. If the computer is in warranty and the port is not damaged, contact Dell Support with your troubleshooting information to take this further. (Out of Warranty calls are chargeable.)

Useful Links:


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Article Properties

Affected Product

Dell 6-in-1 USB-C Multiport Adapter - DA305, Dell USB-C Mobile Adapter - DA310

Last Published Date

12 Jan 2023

Version

1

Article Type

Solution

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